Fence of concrete or the like.



` PATENTED AUG. 2s, 0. Lr. GBRBER. PBNGB 0F CONCRETE 0R THB LIKE;

APPLICATION FILED JUNE 1 6.1905

5f/2,22524 0. wlw ll |11 UNITED; sjfrafrns PATENT orrion CARL LOUIS ramnaloneniiaafor RBEL, GERMANY. l FENoE oF coN'oRETElol- THE LlKE.

.Specification of Letters Patent.

rammed Aug. 2e, 190e.-

Application filed June 16, 1.906. Serial No. 265,615.

residing at Rbel, in the Grand Duchy ofl `Mecklenburg-Schwerin, Germany, have invented certain new and useful Improvements in Fences of Concrete or the Like, of which the following is a specification, reference behad-therein tothe accompanying dra-wings. l 4

The hitherto known fences of concrete or similar materials' offer a considerably greater resistance to the v influence of the weather thanthe known'fences made of old railway-- ISH y the disadvantage that theycannot be as sleepers, deals, and the like; but they present easily erected or transferred to .other places as the latter.

-My invention relates to im rovements in fencesv of concrete or theV like w ereby besides the above-named advantage also that ofthe wooden fences is obtained 5 and the objects of my improvement are, first, to .divide the fence into posts and plates which can be connected by means of grooves and tongues; second, to divide the posts and the plates each into several pieces, so as vto increase or decrease the height of the fence at will, and, third,to combine the several pieces of each post by means of a holding-down bolt. 'l

, attain these objects by the construction illustrated in the accompanying drawings, in which- Figure 1 is an elevation of a part o f a di-` visible concrete fence.` Fig. 2 -is a vertical cross-section through the same on'the line A A in Fig. l. Fig. 3 is a horizontal section through the sameon the line B B in Fig..1.

p Figl is a perspective view of the detached upper and intermediate parts of a post, and Figs.A 5 to 7 are vertical cross-sections through parts of three modifications. of the fence.

rality of Similar letters of reference' 'refer to similar parts throughout the several views.

The fencemade of concrete or the like is according to my invention' divided into a plu'- posts and a' plurality of plates. -In

case the eight of the fence is not great the posts and the plates between them maT be each made in a single block, provided that the Weights of the several parts arel sufficiently small to-render their transport and' erection easy. In general, however,- the height of the fence is so. great that it is preferable to divide each plate and each post into several superposed pieces g g and a b c, respectively, as is shown In Figs. 1 and 2. All these various pieces are preferably manufactured so thatA the pieces' of each. kind are alike and maybe interchanged. Thereby also the advantage is obtained that fences of varying heights may be formed from the same pieces.

. In order to strengthen the plate-pieces g g, they are preferably 'each provided with a stiifening inclosulre*for example, a wire fabric i (see Fig. 3)-which is embedded in the v concrete or the like. The several plate-pieces g g may be provided with cuts -c c, in which ones hands may engage for lifting or inserting the pieces. The lowermost plate-pieces g, however, may be left without. any lcuts c c, as shown, if this be deemed ldesirable for diferent purposes, as toy prevent animals from creeping through. The vertical end edges of the plate-pieces g g are made to engage like tongues in suitable grooves h h of the posts.

' Each post consists of a ground-block a, a head-piece c, and, if so desired, one or several intermediate pieces b. The may be made a little stronger than the other pieces and is arranged to be put in the ground. On the top face it is provided with a crossshape'd projection similar to e in Fig. f1, which ground-block a.

cross-s aped recess f of either the head-piece the cross-shaped projection e, on the bottom v cor an intermediate piece b. Each-intermediate piece b 1s provided on the top face withI face with a similarly-shaped recess f, and on two vopposite sides with .two vertical grooves h h, extending over the whole length. lThe head-piece c is provided on the bottom face `with a cross-shaped recess f and on two opposite sides with two vertical grooves h, which do not reach the top face, buit terminate at a vcertain distance therefrom. In accordance with this each uppermost plate-piece g is cut outin the upper corners at Z, so as to properly `engage in the respective grooves h h of the head-pieces c c. All the parts a b c of each post are provided with central bores throughy which a holding-down bolt d can pass. The top faces ofthe head-pieces 'c c Iool are shown as slightly sloped; but they may l have any other shape. The height of each head-piece c and intermediate piece bis as# sumed to-be double-that of either' plate-piece g. The heads m m ofthe l'ldmg-down bolts been passed through them from below.

d d are shown as very shallow and large in diameter; but they may have theordinary shape and be provided with washers.

The divisible fence is erected as follows: 'lhe several ground-blocks a a are ut,in the grpund at the proper' distances fiom each other after the holding-down bolts d d hafve I a fence as shown at Figs. 1 and 2 is desired, then a single intermediate piece l) is put over each holding-down bolt d and placed on the ground-block a. Then two horizontal rows of plate-pieces g g are inserted one after the other in the grooves 7L 7L of the several intermediate pieces b b. Next two superposed rows of plate-pieces g g are placed on the top faces of the upper plate-pieces g g already inserted and afterward a head-piece c is so put over each holding-down bolt d that the edges of the upper plate-pieces g g engage in its grooves h h; At last the holding-down bolts d d are tightened with the aid of their nuts n n and washers o o, whereby the several parts 'of' the fence are rigidly connected together. The pieces I) c of either post are prevented from turning by the cross-shaped projections e of the ground-block e and the intermediate piece t, which engage in the corresponding recesses f of the pieces above them, respectively. The uppermost plateieces g g cannot be withdrawn or 'removed iiy unauthorized persons, as their tongues are checked bythe head-pieces c engaging in their cuts l. In case the fence is to be formed of sections at. right angles to each other of course the several pieces of the corner-posts will .require to have their two grooves lL la not on opposite sides, but on two adjoining sides.

Itis evident that in case the fence requires to be half as high as shown only two superposed rows of plate-pieces g g need be put on, while the intermediate pieces b b are omitted and the head-pieces c c are placed direct on the ground-blocks a; a. If the fence is desired to behigher, say two superposed intermediate pieces b b may be taken for each post and six superposed rows in all of plate-pieces g g may be employed. Obviously the fence can be easily taken to pieces, removed to another place, and there erected.

The divisible fence may bevaried in many respects without deviating from the spirit of my invention. The posts shown have a square cross-section, (with the 'exception of the grooves 7L 7L,) but they may have any other cross-section'. Instead of the cross-shaped projections ee also pins or pegs may be ein ployed, which are arranged to engage in corresponding holes in place of the cross-shaped recesses ff, or the cross-shaped projections e e may be replaced by dovetailed projections, which engagein grooves of a dovetailed cross-section instead of in the cross-shaped recesses f f.' Then the several pieces of each cease? l post may be composed by laterally inserting the dovetailed projection ofone'piece 1n the dovetailed groove of the 'other piece. In

this case the several pieces of each post are prevented from displacing themselves by the plate-pieces g g, ,which are so arranged as to engage partly in the groove of one piece and partly in the groove of the other piece. The cross-section of the plate-pieces g g may be varied. Figs. 5 and 6 show, for example, plate-pieces g g of an upwardly-tapering crosssection. Such plate-pieces may be provided at the vertical end edges with tongues,which can engage in grooves h of a uniform crosssection. The arrangement of the platepieces g g may also be modified. Fig'. 7 shows, for example, slanting plate-pieces g g, which overlap each other and leave between them spaces j), whichmay serve for the circulation of air or for other purposes.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A divisible fence of concrete or the like, comprising posts formed in superimposed sections having registering grooves in the side walls thereof, oneof said sections being designed to be buried, means for retaining the sections together, anchored by the buried section, and a plurali-ty of plates designed to be superimposed and having their ends fitted and held within the grooves in the sections.

2. In a divisible fence of concrete and the like, thecombination with a plurality of ground-blocks each provided with a vertical central bore and a projection on the top face, of a plurality ofposts each provided with a vertical central bore, two lateral grooves and j ection of the respective ground-block can engage, a plurality of plates adapted to engage in the grooves of said plurality of posts, and a plurality of holding-down bolts passed through the vertical central bores of said plurality of ground-blocks and said plurality of posts and adapted to connect together the fence.

3. In a divisible fence of concrete and the like, the combination with a plurality of ground-blocks each provided with a vertical central bore and a projection on the top face, of a plurality of intermediate pieces each provided with a vertical central bore, two lateral grooves, a recess in the bottom face and a projection on thetop face, a plurality of headpieces each provided with a vertical central bore, two lateral grooves and a recess in its bottom. face, a plurality ofholding-down bois passed through the vertical central boi l. f el said plurality of ground-blocks, said piira. of intermediate pieces and said plurality ei' head-pieces and adapted to connect .together the pieces, whereby a plurality of posts is formed, and a plurality of platepieces adapted to engage in the grooves of said plurality of posts and to'form walls.

a recess in the bottom face, in which the prorigo 4. In a divisible fence of concrete and the like, the combination with a plurality of` passed through the vertical central bores ofl said pluralityof ground-blocks and said plurality of posts land adapted to connect together the fence.

5. In a divisible'fence of concrete and the like,A the combination with a plurality of ground-blocks each provided with a vertical central bore andra cross-shaped projection on the top face, of a plurality of intermediate ieces each provided with a vertical central bore, two lateral grooves extending overthe whole height, a crosseshaped recess in the bottom face and a cross-shaped projection on the top face, a plurality of head-pieces each provided with a vertical central bore, two lateral grooves extending to a point 'beneath its top face and a cross-shaped recess in its bottom face, a plurality of holdingdown bolts passed through the vertical central bores of s'aid plurality of ground-blocks, said plurality of intermediate pieces and said plurality of head-pieces and adapted to connect together the pieces, whereby a plurality of posts is formed, and a plurality of superposed plate-pieces adapted to engage in the grooves of said plurality of posts and-to form i walls. l

In testimony whereof I have aflixed my signature in presence of two witnesses.

yCARL LOUIS FRIEDRICH GERBER Witnesses A RICHARD SoHLNz, AUGUST PHELMANN. 

